Misaligned Rotations of the Envelope, Outflow, and Disks in the Multiple Protostellar System of VLA 1623–2417: FAUST. III

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dc.citation.articleNumber54
dc.citation.issueNumber1
dc.citation.journalTitleThe Astrophysical Journal
dc.citation.volumeNumber927
dc.contributor.authorOhashi, Satoshi
dc.contributor.authorCodella, Claudio
dc.contributor.authorSakai, Nami
dc.contributor.authorChandler, Claire J.
dc.contributor.authorCeccarelli, Cecilia
dc.contributor.authorAlves, Felipe
dc.contributor.authorFedele, Davide
dc.contributor.authorHanawa, Tomoyuki
dc.contributor.authorDurán, Aurora
dc.contributor.authorFavre, Cécile
dc.contributor.authorLópez-Sepulcre, Ana
dc.contributor.authorLoinard, Laurent
dc.contributor.authorMercimek, Seyma
dc.contributor.authorMurillo, Nadia M.
dc.contributor.authorPodio, Linda
dc.contributor.authorZhang, Yichen
dc.contributor.authorAikawa, Yuri
dc.contributor.authorBalucani, Nadia
dc.contributor.authorBianchi, Eleonora
dc.contributor.authorBouvier, Mathilde
dc.contributor.authorBusquet, Gemma
dc.contributor.authorCaselli, Paola
dc.contributor.authorCaux, Emmanuel
dc.contributor.authorCharnley, Steven
dc.contributor.authorChoudhury, Spandan
dc.contributor.authorCuello, Nicolas
dc.contributor.authorSimone, Marta De
dc.contributor.authorDulieu, Francois
dc.contributor.authorEvans, Lucy
dc.contributor.authorFeng, Siyi
dc.contributor.authorFontani, Francesco
dc.contributor.authorFrancis, Logan
dc.contributor.authorHama, Tetsuya
dc.contributor.authorHerbst, Eric
dc.contributor.authorHirano, Shingo
dc.contributor.authorHirota, Tomoya
dc.contributor.authorImai, Muneaki
dc.contributor.authorIsella, Andrea
dc.contributor.authorJímenez-Serra, Izaskun
dc.contributor.authorJohnstone, Doug
dc.contributor.authorKahane, Claudine
dc.contributor.authorGal, Romane Le
dc.contributor.authorLefloch, Bertrand
dc.contributor.authorMaud, Luke T.
dc.contributor.authorMaureira, María José
dc.contributor.authorMenard, Francois
dc.contributor.authorMiotello, Anna
dc.contributor.authorMoellenbrock, George
dc.contributor.authorMori, Shoji
dc.contributor.authorNakatani, Riouhei
dc.contributor.authorNomura, Hideko
dc.contributor.authorOba, Yasuhiro
dc.contributor.authorO'Donoghue, Ross
dc.contributor.authorOkoda, Yuki
dc.contributor.authorOspina-Zamudio, Juan
dc.contributor.authorOya, Yoko
dc.contributor.authorPineda, Jaime
dc.contributor.authorRimola, Albert
dc.contributor.authorSakai, Takeshi
dc.contributor.authorSegura-Cox, Dominique
dc.contributor.authorShirley, Yancy
dc.contributor.authorSvoboda, Brian
dc.contributor.authorTaquet, Vianney
dc.contributor.authorTesti, Leonardo
dc.contributor.authorVastel, Charlotte
dc.contributor.authorViti, Serena
dc.contributor.authorWatanabe, Naoki
dc.contributor.authorWatanabe, Yoshimasa
dc.contributor.authorWitzel, Arezu
dc.contributor.authorXue, Ci
dc.contributor.authorZhao, Bo
dc.contributor.authorYamamoto, Satoshi
dc.date.accessioned2022-04-15T14:45:24Z
dc.date.available2022-04-15T14:45:24Z
dc.date.issued2022
dc.description.abstractWe report a study of the low-mass Class 0 multiple system VLA 1623AB in the Ophiuchus star-forming region, using H13CO+ (J = 3–2), CS (J = 5–4), and CCH (N = 3–2) lines as part of the ALMA Large Program FAUST. The analysis of the velocity fields revealed the rotation motion in the envelope and the velocity gradients in the outflows (about 2000 au down to 50 au). We further investigated the rotation of the circumbinary VLA 1623A disk, as well as the VLA 1623B disk. We found that the minor axis of the circumbinary disk of VLA 1623A is misaligned by about 12° with respect to the large-scale outflow and the rotation axis of the envelope. In contrast, the minor axis of the circumbinary disk is parallel to the large-scale magnetic field according to previous dust polarization observations, suggesting that the misalignment may be caused by the different directions of the envelope rotation and the magnetic field. If the velocity gradient of the outflow is caused by rotation, the outflow has a constant angular momentum and the launching radius is estimated to be 5–16 au, although it cannot be ruled out that the velocity gradient is driven by entrainments of the two high-velocity outflows. Furthermore, we detected for the first time a velocity gradient associated with rotation toward the VLA 16293B disk. The velocity gradient is opposite to the one from the large-scale envelope, outflow, and circumbinary disk. The origin of its opposite gradient is also discussed.
dc.identifier.citationOhashi, Satoshi, Codella, Claudio, Sakai, Nami, et al.. "Misaligned Rotations of the Envelope, Outflow, and Disks in the Multiple Protostellar System of VLA 1623–2417: FAUST. III." <i>The Astrophysical Journal,</i> 927, no. 1 (2022) IOP Publishing: https://doi.org/10.3847/1538-4357/ac4cae.
dc.identifier.digitalOhashi_2022_ApJ_927_54
dc.identifier.doihttps://doi.org/10.3847/1538-4357/ac4cae
dc.identifier.urihttps://hdl.handle.net/1911/112077
dc.language.isoeng
dc.publisherIOP Publishing
dc.rightsOriginal content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleMisaligned Rotations of the Envelope, Outflow, and Disks in the Multiple Protostellar System of VLA 1623–2417: FAUST. III
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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